226490186 has 8 divisors (see below), whose sum is σ = 365868804. Its totient is φ = 104533920.

The previous prime is 226490153. The next prime is 226490189. The reversal of 226490186 is 681094622.

It can be written as a sum of positive squares in 2 ways, for example, as 213306025 + 13184161 = 14605^2 + 3631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (226490189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4355555 + ... + 4355606.

Almost surely, 2^226490186 is an apocalyptic number.

226490186 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

226490186 is a deficient number, since it is larger than the sum of its proper divisors (139378618).

226490186 is a wasteful number, since it uses less digits than its factorization.

226490186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711176.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 226490186 is about 15049.5908914495. The cubic root of 226490186 is about 609.5600034065.

The spelling of 226490186 in words is "two hundred twenty-six million, four hundred ninety thousand, one hundred eighty-six".